Fixing a corrupt .fit file

This will work - D2LB1157-fixed.fit

Fixed using Fit File Repair Tool

Some suggestions to help minimize the occurrence of corrupt fit files:

• Sync your device then remove all activity fit files from your Garmin device using these directions - Removing Recorded Activities on a Garmin Fitness Device 
• Check for firmware updates using Garmin Express

madmatt2314 said:

My HR strap didn't seem to connect properly during the saving process so that might have messed up some of the data?

Exactly. 

• Update the HRM firmware How Do I Update the HRM-Pro Software Using the Garmin Connect App?
• Note that HR data download after the activity is usually for swimming or when for some reason you could not wear your watch during an activity.
• During the HRM-Pro download process keep the strap and watch in close proximity
• If issues persist even after the firmware update, contact Garmin Support
• More here about corrupted HR data: Corrupt FIT File Repair Requests

More here: Corrupt FIT File Repair Requests

MostafaMossaad said:

The workaround I've found to work almost always is.

1- Disable Bluetooth on your mobile phone (To avoid duplicated activities. More on that later).

2- When finishing your activity. Choose to save it. But *CANCEL* the heart rate data download. Save the workout WITHOUT the heart rate data.

(This will save an activity without heart rate data. And if your phone syncs that, you'll have an activity on Garmin Connect (And any other services connected to it) without the heart rate data.

3- Go to the activity details and THEN choose to download the heart rate data. The watch should search for your HRM, download the data, then treat/parse/add/etc.

(This will add/impose the heart rate data on your current activity. If you had synced before this step, Garmin Connect will create a new/duplicate activity, but with your heart rate data, and this new one "might" go to other services, or not. Depending on the Service. It won't go to Strava because Strava will believe it's a duplicate activity because it is of the same type and started at the same time as the previous one, but it will go as a duplicate to TrainingPeaks)

4- Now you can turn on Bluetooth on your mobile and then sync.